CVE-2017-8810

Debian Security Advisory 4036-1

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

MediaWiki before 1.27.4, 1.28.x before 1.28.3, and 1.29.x before 1.29.2, when a private wiki is configured, provides different error messages for failed login attempts depending on whether the username exists, which allows remote attackers to enumerate account names and conduct brute-force attacks via a series of requests.

MediaWiki en versiones anteriores a la 1.27.4; las versiones 1.28.x anteriores a la 1.28.3 y las versiones 1.29.x anteriores a la 1.29.2, cuando se ha configurado una wiki privada, proporciona diferentes mensajes de error para intentos de inicio de sesión fallidos dependiendo de si existe el nombre de usuario. Esto permite que atacantes remotos enumeren nombres de cuentas y lleven a cabo ataques de fuerza bruta mediante una serie de peticiones.

Multiple security vulnerabilities have been discovered in MediaWiki, a website engine for collaborative work.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2017-05-07 CVE Reserved
2017-11-15 CVE Published
2024-08-05 CVE Updated
2025-07-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

CAPEC

References (3)

URL	Tag	Source
http://www.securitytracker.com/id/1039812	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://lists.wikimedia.org/pipermail/mediawiki-announce/2017-November/000216.html	2017-11-28

URL	Date	SRC
https://www.debian.org/security/2017/dsa-4036	2017-11-28

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Mediawiki Search vendor "Mediawiki"		Mediawiki Search vendor "Mediawiki" for product "Mediawiki"				<= 1.27.3 Search vendor "Mediawiki" for product "Mediawiki" and version " <= 1.27.3"		-		Affected
Mediawiki Search vendor "Mediawiki"		Mediawiki Search vendor "Mediawiki" for product "Mediawiki"				1.28.0 Search vendor "Mediawiki" for product "Mediawiki" and version "1.28.0"		-		Affected
Mediawiki Search vendor "Mediawiki"		Mediawiki Search vendor "Mediawiki" for product "Mediawiki"				1.28.1 Search vendor "Mediawiki" for product "Mediawiki" and version "1.28.1"		-		Affected
Mediawiki Search vendor "Mediawiki"		Mediawiki Search vendor "Mediawiki" for product "Mediawiki"				1.28.2 Search vendor "Mediawiki" for product "Mediawiki" and version "1.28.2"		-		Affected
Mediawiki Search vendor "Mediawiki"		Mediawiki Search vendor "Mediawiki" for product "Mediawiki"				1.29.0 Search vendor "Mediawiki" for product "Mediawiki" and version "1.29.0"		-		Affected
Mediawiki Search vendor "Mediawiki"		Mediawiki Search vendor "Mediawiki" for product "Mediawiki"				1.29.1 Search vendor "Mediawiki" for product "Mediawiki" and version "1.29.1"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0"		-		Affected